Date: Thu, 30 Apr 1998 09:41:51 -0600 (MDT)
From: Karen Gloria
Subject: 3.5-m obslog 980429
                          TUESDAY APRIL 29, 1998
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Turner           Gloria               DIS       4/29     -     -
Hoopes           Hoopes               DIS     4/29-30  22:30 04:47
 INST        SCHEDULED      OBS      WEATH     EQUIP   DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
Pu01/S     21:14 21:54    -    0    -   0.7   -    0    0    -    0
NM02/S     21:54 04:47   3.8  0.8  0.8  0.7  1.0   0    0    0    0
(note: times listed include instrument change time)
                               ACTIVITY LOG
(* means a trouble report has been issued or appended to)
The telescope was opened at 22:30 MDT.  Opening was delayed by
clouds.  The observers were myself for PU01 and Charles Hoopes for
NM02.  PU01 was clouded out.
Charles tried out the new DIS/Remark software.  I screwed up the
offset on a spectral exposure, which cost a bit of time.
*We had a problem with the TCC that interfered with drift scanning.  I
got it sorted out, although it did cost us some time.  After that
drift scanning went fine.
			     OBSERVER COMMENTS
Charles (NM02) - Lots of clouds in the first half, so I only got one
45 minute spectrum of diffuse ionized gas in M101. It is probably not
useful due to the high readnoise of DIS.
Then we switched to Spicam. Mis-communication between the tcc and
spicam made driftscanning impossible. I lost about an hour diagnosing
and fixing the problem, which meant rebooting the tcc. After that
things went smoothly and driftscanning worked as expected.
                                 FOCUS LOG
                               APRIL 29 1997
                  Best   Telescope           Wind            Seeing
Time   Inst      Focus    Az  El   #Temp    Dir MPH  filter  FWHM "
22:35  DIS   -225(6063)  169  76  3.8/5.6    -   0     r      1.1
00:15  DIS   -150(6113)    6  68  4.8/4.5   302  1     r      1.4
02:05 SPIcam -150(6023)  348  68  4.6/4.1   266  2     I      0.7
#The first temp is air, the second is truss, both in degrees Celsius
                                 WEATHER
                              APRIL 29 1997
                                   Wind
    Time  Temp F  Dewp. F  MPH.	  Dir.       Dust     Sky       Precip.
     16:01    49    22     11   266  (W)     1519   mstly cldy   none
     17:01    47    20      1   272  (W)     1398   mstly cldy   none
     18:01    39    30     10   347  (NNW)   3972   mstly cldy   none
     19:01    42    27     10    33  (NNE)   2423   ptly cldy    none
     20:01    42    18      5   270  (W)     1785   mstly cldy   none
     21:01    41    19      6   264  (W)     1619   mstly cldy   none
     22:01    39    23      6   234  (SW)    1712   ptly cldy    none
     23:01    40    24      0   269  (W)     2140   mstly cldy   none
     00:01    41    21      4    84  (E)     1610   ptly cldy    none
     01:01    41    24      3   267  (W)     1660   ptly cldy    none
     02:01    41    22      4   273  (W)     1543     clear      none
     03:01    40    22      6   326  (NW)    1592     clear      none
     04:01    40    22      2   295  (WNW)   1534     clear      none
     05:01    40    22      6   288  (WNW)   1427     clear      none
     06:01    39    24      3   339  (NNW)   1501     clear      none
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees. The dust count is particles
> 1 micron per 0.1 cu. ft.
                             TELESCOPE STATUS
Primary, secondary, and tertiary mirrors in place and collimated.
Primary support system operational.  Mirror ventilation system in
place.  Telescope drives operational.  Current Remark version: 2.39.
Current guide software version: GIm Ctrlv3.0b11.
-Karen